> I still have to check whether it now also correctly
> changes all extension to html.

All the 3.4x version have always kept the extensions as is for me. IIRC this
started after 3.33

HTTrack Website Copier/3.43-4 

10:13:40	Info: 	engine: transfer-status: link updated: SITEcom/submit.php ->
C:/Documents and Settings/Bill/My
Documents/_internetDLed/SITE/web/html/submit.php